Friction stir welding tool assembly



1. Friction stir welding tool assembly

1.1 : Top

1.2 : Bottom

1.3 : Front

1.4 : Back

1.5 : Left

1.6 : Perspective

1.7 : Right

This design relates to a friction stir welding tool assembly. The broken lines in the Reproductions show portions of the friction stir welding tool assembly that form no part of the claimed design. 

CLAIM The ornamental design for a friction stir welding tool assembly, as shown and described. 